Harrow.



M. ELSAS.

HARROW.

APPLICATION FILED 12313, 1613.

Patented Dec. 1, 1914.

km 1% mm THE NORRIS PETERS 60.. PHOTO-LITHQ, WASH/No mN. D. c.

MARSHAL ELSAS, 01F INDEPENDENCE, MISSOURI.

HARROW.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed February 13, 1913. Serial No. 748,110.

To all whom it may concern Be it known that I, MARSHAL ELsAs, a citizenof the United States, residing atlndependence, in the county of Jacksonand State of Missouri, have invented certain new and useful Improvementsin Harrows, of which the following is a specification.

My invention relates to improvements in disk harrows and diskcultivatoi's, and one object of the invention isto provide novel meansfor lubricating the shaft or shafts upon which the disks or rotarycultivating appliances are mounted.

A further object is to provide means for preventing the escape of theoil and for exeluding dust and other foreign matter from the shaft.

Other objects of the invention will hereinafter appear, and in orderthat said invention may be fully understood, reference will nowbe madeto the accompanying drawing, in which:. I I

Figure 1 is a vertical longitudinal section, showing the invention. Fig.2 is a cross section on line 11-11 of Fig. 1.

In carrying out the invention, I employ a fixed shaft 31 having holes 32at the ends thereof for the securement of a suitable draft -mechanismthereto. Shaft 31 is provided with a thrust-collar 80 reliably securedthereto by a pin 81.

82 designates a short section of tubular lining journaled upon the shaft31 at one side of the collar 80 and spaced a short distance therefrom.

94 designates a longsection of tubular lining journaled upon the shaft31 and ar ranged at the opposite side of the collar 80 to that on whichthe short section 82 is located. v

90 designates a tubularoil-boxloosely-encompassing the collar 80 andextending beyond one side thereof to form a lubricant chamber 91 forholding a supply of oil.-

One end of the oil-box 90 is internally threaded to receive anexternally threaded cap 88, while the opposite end of said box has anintegral hub- 92 snugly embracing the.

adjacent end of the long section of lining 94, which is screwed intosaid hub.

The free end of hub 92 has an integral flange 93 which abuts a disk 30,a plurality of which are mounted upon a like number of spacing-sleeves97, provided at their ends with flanges 98. Each disk 30 is securedbetween each pair of flanges 98. The disk 30 near one end of the lining9 1, is secured between a flange 98 and the flange 93, While the disknear the opposite end of said lining 94: is secured between a flange 98and a ring 99 loosely-mounted upon the lining. The disks 30 and thespacing sleeves 97 are firmly drawn together by bolts 100 which extendthrough holes in the ring 99 and the flange 93, and are provided withnuts 102.

Cap 88 is fitted upon the innerend of the short tubular section 82 andcarries a disk 30 which is held thereon by the abutting flange 87 of aspacing sleeve 83, provided with a flange 84 at its opposite end whichis bolted to a disk 30. The spacing sleeve 83 is secured to the shorttubular section 82 through the intermediacy of set-screws 101. The outerends of the tubular linings 82 and 94: are threaded and provided withstufling-boxes 85-95, containing packing 86 and 96, respectively. Saidstuffing-boxes retain the lubricant within the tubular linings andexclude dust and'other foreign matter therefrom. By removing theset-screws 101 from the spacing-sleeve 83 and the nuts 102 from thebolts 100 the disks 30 and the spacing sleeves may be removed.

While I have shown and described the preferred form of my invention, itis understood that the invention is not limited to the specific form andconstruction of the details disclosed, but is susceptible of variousalterations in the scope of the appended claim.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

In a harrovv, a fixed shaft, tubular lining journaled upon said shaftand adapted to contain oil, stuffing-boxes encompassing the ends of saidtubular lining, cultivating appliances encompassing said tubular liningand arranged to rotate therewith, a thrustcollar secured to the shaft,and an oil box loosely-embracing said thrust-collar and arranged torotate with the cultivating ap pliances.

In testimony whereofI aflix my signature, in the presence of twoWitnesses.

MARSHAL ELSAS.

Witnesses:

S. ELsAs, F. G. Fisomin.

Copies of this patent may be obtained'for five cents each, by addressingthe Commissioner of Iatents,

Washington, D. G.

